Improvement in compositions for journals and bearings



UNITED STATES MAXDIE J. MAR-GOTTE, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN COMPOSITIONS FOR JOURNALS AND BEARINGS.

Specification forming part of Letters Patent No. 117,652, dated August 1, 1871.

To all whom it may concern:

Be it known that I, MAXIME J. MAROOTTE, of

the city and county of St. Louis and State of Misabout the proportions hereinafter named for the formation of the bearin g-surface in journal-boxes, audit is intended to diminish the friction between the shaft and the box to such an extent as to render the application of a liquid lubricant, such as oil, almost or entirely unnecessary.

My composition consists of the following metals mixed in about the proportions named, Viz: Tin, sixteen pounds; lead, twelve pounds; cop per, eight pounds; zinc, eight pounds; antimony, four pounds; finelypulverized plumbago, one pound.

The tin, copper, zinc, and antimony are first melted together, and, when they are thoroughly mixed, are run into a mold.

When it is desired to fill the journal-boxes, the

ingot taken from the mold is remelted in an iron pot over a slow 'fire of charcoal or gascoke. When the ingot is melted the lead and plumbago are thoroughly stirred in, the lead becoming melted and the plumbago thoroughly mixed, resulting in a pasty mass. The journal-box castings are, before filling,heated to the same temperature as the semi-fluid alloy, with which the chambers in the castings are then filled by means of a trowel or other suitable tool, and the journal-face is shaped by means of a smooth cylinder of hard wood of the same diameter as the journal.

I claim as my invention- The metallic composition, substantially as described.

' In testimony of which invention I have hereunto set my hand.

' MAXIME J. MARCOTTE.

Witnesses:

SAML. KNIGHT, HENRY G. ISAACS. 

